4 files changed, 34 insertions, 0 deletions

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 483fb69fa4ae..75af93dc52ad 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -600,6 +600,7 @@ else
                 LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
                 LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
                 LIB_OBJS += $(OUTPUT)ui/gtk/util.o
+                LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
                 # Make sure that it'd be included only once.
                 ifneq ($(findstring -DNO_NEWT_SUPPORT,$(BASIC_CFLAGS)),)
                         LIB_OBJS += $(OUTPUT)ui/setup.o
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index a4d0f2b4a2dc..793cb6116ddf 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -29,6 +29,8 @@ static inline bool perf_gtk__is_active_context(struct perf_gtk_context *ctx)
 struct perf_gtk_context *perf_gtk__activate_context(GtkWidget *window);
 int perf_gtk__deactivate_context(struct perf_gtk_context **ctx);
 
+void perf_gtk__init_helpline(void);
+
 #ifndef HAVE_GTK_INFO_BAR
 static inline GtkWidget *perf_gtk__setup_info_bar(void)
 {
diff --git a/tools/perf/ui/gtk/helpline.c b/tools/perf/ui/gtk/helpline.c
new file mode 100644
index 000000000000..2511b3746797
--- /dev/null
+++ b/tools/perf/ui/gtk/helpline.c
@@ -0,0 +1,30 @@
+#include "gtk.h"
+#include "../helpline.h"
+
+static void gtk_helpline_pop(void)
+{
+        if (!perf_gtk__is_active_context(pgctx))
+                return;
+
+        gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar),
+                          pgctx->statbar_ctx_id);
+}
+
+static void gtk_helpline_push(const char *msg)
+{
+        if (!perf_gtk__is_active_context(pgctx))
+                return;
+
+        gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar),
+                           pgctx->statbar_ctx_id, msg);
+}
+
+static struct ui_helpline gtk_helpline_fns = {
+        .pop    = gtk_helpline_pop,
+        .push   = gtk_helpline_push,
+};
+
+void perf_gtk__init_helpline(void)
+{
+        helpline_fns = &gtk_helpline_fns;
+}
diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
index 92879ce61e2f..ad40b3626fdb 100644
--- a/tools/perf/ui/gtk/setup.c
+++ b/tools/perf/ui/gtk/setup.c
@@ -7,6 +7,7 @@ extern struct perf_error_ops perf_gtk_eops;
 int perf_gtk__init(void)
 {
         perf_error__register(&perf_gtk_eops);
+        perf_gtk__init_helpline();
         return gtk_init_check(NULL, NULL) ? 0 : -1;
 }